Insulin-administrated phosphorylation of the CNS proteins in Lymnaea
Ontology highlight
ABSTRACT:
ORGANISM(S): Cellular Organisms
SUBMITTER: Junko Nakai
PROVIDER: PXD044435 | JPOST Repository | Tue Aug 08 00:00:00 BST 2023
REPOSITORIES: jPOST
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| KK1269-1_Insulin-1.raw | Raw | |||
| KK1269-2_Insulin-2.raw | Raw | |||
| KK1269-3_Insulin-3.raw | Raw | |||
| KK1269-4_HCI-1.raw | Raw | |||
| KK1269-5_HCl-2.raw | Raw |
Items per page: 5 1 - 5 of 13 |
Similar Datasets
Project description:Sensory neurons in the dorsal root ganglia (DRG) convey somatosensory and metabolic cues to the central nervous system and release substances locally from stimulated terminal endings in peripheral organs. Sex-biased variations driven by the sex chromosome complement (XX and XY) have been implicated in the sensory-islet crosstalk. However, the identity of the molecules underlying male-female differences is not known. Here, we aim to characterize the molecular repertoire and the secretome profile of the spinal sensory neurons in sexually immature male and female mice to identify molecules with sex-biased insulin sensing- and/or insulin secretion-modulating activity. We used transcriptomics and proteomics to uncover differentially expressed genes and secreted molecules in DRG sensory neurons derived from 3-week-old male and female C57BL/6J mice. Comparative transcriptome and proteome analyses revealed differential gene expression and protein secretion in DRG neurons in males and females. Interestingly, gene ontology annotation highlighted sex differences in epigenetic regulation, cell cycle, DNA replication and insulin signaling pathways. Secretome analysis uncovered several sex-based variations in conventionally and unconventionally sensory-secreted proteins with potential roles in β-cell function-modulating activity. Collectively, we provide a valuable resource of molecular and secretory targets that can be leveraged for understanding sex differences in DRG sensory neurons. Some of these candidates have translational value as they can inform the development of novel sex-based therapeutic opportunities for individuals with compromised β-cell activity.
2023-09-20 | GSE228189 | GEO
Project description:Intranasal insulin is a safe and effective method for ameliorating memory deficits associated with pathological brain aging. However, the impact of different formulations and the duration of treatment on insulin’s efficacy and the cellular processes targeted by the treatment remain unclear. Here, we tested whether intranasal insulin aspart, a short-acting insulin formulation, could alleviate memory decline associated with aging and whether long-term treatment affected regulation of insulin receptors and other potential targets. Outcome variables included measures of spatial learning and memory, autoradiography and immunohistochemistry of the insulin receptor, and hippocampal microarray analyses. Aged Fischer 344 rats receiving long-term (3 months) intranasal insulin did not show significant memory enhancement on the Morris water maze task. Autoradiography results showed that long-term treatment reduced insulin binding in the thalamus but not the hippocampus. Results from hippocampal immunofluorescence revealed age-related decreases in insulin immunoreactivity that were partially offset by intranasal administration. Microarray analyses highlighted numerous insulin-sensitive genes, suggesting insulin aspart was able to enter the brain and alter hippocampal RNA expression patterns including those associated with tumor suppression. Our work provides insights into potential mechanisms of intranasal insulin and insulin resistance, and highlights the importance of treatment duration and the brain regions targeted.
2019-04-20 | GSE130098 | GEO
Project description:Analysis of gene expression in the liver of insulin-deficient mice regulated by icv leptin administration. Control group received icv PBS administration. Icv leptin administration ameliorates hyperglycemia in insulin-deficient mice. Our transcriptome data provides important aspects of the leptin’s anti-type 1 diabetes action.
2013-09-03 | GSE48598 | GEO
Project description:Phosphoproteomics of mouse liver over a period of four hours after insulin administration. It is part of a larger project that contains multi-omic datasets.
2021-08-25 | PXD022823 | Pride
Project description:Proteomics of mouse liver over a period of four hours after insulin administration. It is part of a larger project that contains multi-omic datasets.
2021-08-25 | PXD022728 | Pride
Project description:Insulin binds the insulin receptor (IR), which in turn has showed to form nanoclusters at the cell membrane. Trying to exploit the nanoscale spatial organization of IR, we developed rod-like insulin-DNA-origami nanostructures carrying different numbers of insulin molecules. These structures (referred to as NanoRods, or NR) were then utilized to investigate receptor activity to spatial distribution of insulin molecules. One part of this investigation was to study the transcriptional response of brown adipocytes treated with NR bound to one insulin (NR-1) and NR bound to seven insulin (NR-7), and compare to untreated controls. Furthermore, free insulin was also used to ensure that similar pathways were activated when using NR-bound insulin.
2023-07-03 | E-MTAB-12160 | biostudies-arrayexpress
Project description:Insulin/IGF-1 Signaling (IIS) is known to constrain longevity by inhibiting the transcription factor FOXO. How phosphorylation mediated by IIS kinases regulates lifespan beyond FOXO remains unclear. Here, we profile IIS-dependent phosphorylation changes in a large-scale quantitative phosphoproteomic analysis of wild-type and three IIS mutant Caenorhabditis elegans strains. We quantify more than 15,000 phosphosites and find that 476 of these are differentially phosphorylated in the long-lived daf-2/insulin receptor mutant. We develop a machine learning-based method to prioritize 25 potential lifespan-related phosphosites. We perform validations to show that AKT-1 pT492 inhibits DAF-16/FOXO and compensates the loss of daf-2 function, that EIF-2α pS49 potently inhibits protein synthesis and daf-2 longevity, and that reduced phosphorylation of multiple germline proteins apparently transmits reduced DAF-2 signaling to the soma. In addition, an analysis of kinases with enriched substrates detects that casein kinase 2 (CK2) subunits negatively regulate lifespan. Our study reveals detailed functional insights into longevity.
2021-06-10 | PXD020440 |
Project description:Background: Perinatal iron deficiency (ID) targets the hippocampus and leads to long-term cognitive deficits. These deficits remain even after iron repletion, suggesting that further insight into the mechanisms of cognitive deficits and adjunct treatments are needed. Intranasal insulin improves cognitive deficits in adult humans with Alzheimer’s disease and type 2 diabetes and could provide benefits in ID-induced neurological dysfunction. Objective: Assess the effects of intranasal insulin administration on the hippocampal transcriptome in rat model of perinatal ID. Methods: Perinatal ID was induced using a low iron diet from gestational day 3 until postnatal day (P) 7, followed by an iron sufficient (IS) diet through P21. Intranasal insulin was administered at a dose of 0.3 IU, twice daily from P8 to P21. Hippocampi were removed on P21 from IS control, ID control, IS insulin, and ID insulin groups. Total RNA was isolated and profiled using TruSeq next-generation sequencing (Illumina). Gene expression profiles were characterized using custom Galaxy workflows and expression patterns were examined using Ingenuity Pathways Analysis (Qiagen) (n = 7-9 per group). Results: Transcriptomic profiling revealed that mitochondrial biogenesis and flux, oxidative phosphorylation, quantity of neurons, CREB signaling in neurons, and RICTOR-based mTOR signaling were disrupted with ID and positively affected by insulin treatment with the most benefit observed in the ID insulin group. Conclusions: Both perinatal ID and insulin administration altered gene expression in the developing hippocampus. Intranasal insulin treatment reversed the adverse effects of ID on many molecular pathways and should be further explored as an adjunct therapy in perinatal ID.
2023-04-20 | GSE220770 | GEO
Project description:BACKGROUND. Dietary intake of saturated fat is a likely contributor to nonalcoholic fatty liver disease (NAFLD) and insulin resistance, but the mechanisms that initiate these abnormalities in humans remain unclear. We examined the effects of a single oral saturated fat load on insulin sensitivity, hepatic glucose metabolism, and lipid metabolism in humans. Similarly, initiating mechanisms were examined after an equivalent challenge in mice. METHODS. Fourteen lean, healthy individuals randomly received either palm oil (PO) or vehicle (VCL). Hepatic metabolism was analyzed using in vivo 13C/31P/1H and ex vivo 2H magnetic resonance spectroscopy before and during hyperinsulinemic-euglycemic clamps with isotope dilution. Mice underwent identical clamp procedures and hepatic transcriptome analyses. RESULTS. PO administration decreased whole-body, hepatic, and adipose tissue insulin sensitivity by 25%, 15%, and 34%, respectively. Hepatic triglyceride and ATP content rose by 35% and 16%, respectively. Hepatic gluconeogenesis increased by 70%, and net glycogenolysis declined by 20%. Mouse transcriptomics revealed that PO differentially regulates predicted upstream regulators and pathways, including LPS, members of the TLR and PPAR families, NF-κB, and TNF-related weak inducer of apoptosis (TWEAK). CONCLUSION. Saturated fat ingestion rapidly increases hepatic lipid storage, energy metabolism, and insulin resistance. This is accompanied by regulation of hepatic gene expression and signaling that may contribute to development of NAFLD.
2017-02-02 | GSE80259 | GEO
Project description:Insulin resistance is accompanied by chronic hyperinsulinemia and is associated with type 2 diabetes and other metabolic syndromes in a substantial portion of the population. The risk factors and features of insulin resistance have been thoroughly described but its mechanistic triggers are still under study. Here we consider a condensate model for insulin receptor (IR) function in normal conditions and when dysregulated in chronic hyperinsulinemia-induced insulin resistance. We find that IR is incorporated into liquid-like condensates at the plasma membrane, in the cytoplasm and in the nucleus of liver cells, and provide evidence for insulin-dependent IR function in condensates. Insulin stimulation promotes further incorporation of IR into these dynamic condensates in insulin sensitive cells, which form and dissolve on short, sub-minute time-scales. In contrast, insulin stimulation does not promote further incorporation of IR into condensates in insulin resistant cells, where IR molecules within condensates exhibit less dynamic behavior. Metformin treatment of insulin resistant cells rescues IR condensate dynamics and insulin responsiveness. Insulin resistant cells experience high levels of oxidative stress, which causes reduced condensate dynamics, and treatment of these cells with metformin reduces ROS levels and returns condensates to their normal dynamic behavior. The condensate model we propose can account for features of normal and dysregulated insulin response and has implications for improved therapeutic approaches to insulin resistance.
2023-07-28 | GSE181096 | GEO